Invention Grant
- Patent Title: Method and apparatus for implementing filter rules in a network element
- Patent Title (中): 在网元中实现过滤规则的方法和装置
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Application No.: US11316720Application Date: 2005-12-23
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Publication No.: US08151339B2Publication Date: 2012-04-03
- Inventor: Vikram Ramachandran , Alexandros Moisiadis , Mohnish Anumala , Debin Zhang , Hong-Zhou Li
- Applicant: Vikram Ramachandran , Alexandros Moisiadis , Mohnish Anumala , Debin Zhang , Hong-Zhou Li
- Applicant Address: US NJ Basking Ridge
- Assignee: Avaya, Inc.
- Current Assignee: Avaya, Inc.
- Current Assignee Address: US NJ Basking Ridge
- Agency: Anderson Gorecki & Manaras LLP
- Main IPC: G06F17/00
- IPC: G06F17/00 ; H04L29/06 ; G06F15/177 ; G06F15/173

Abstract:
Multiple non-conflicting actions associated with filter rules may be located and applied to a packet using a single ACL lookup by causing action records to be created from ACEs in the ACL, and then causing the ACL lookup to return the action record rather than any one particular ACE. Radix tables may be created to enable a search engine to quickly locate the appropriate action record based on a particular set of attributes associated with the incoming packet. The action record can contain multiple actions taken from multiple ACEs that apply to the particular packet. By grouping all the actions into an action record, and then searching for an action record that applies to the packet, it is possible to apply all non-conflicting actions to the packet regardless of the number of ACEs that are used to specify those actions. Since all the actions are located together, the actions of all ACEs may be applied to a packet using a single ACL lookup.
Public/Granted literature
- US20070150614A1 Method and apparatus for implementing filter rules in a network element Public/Granted day:2007-06-28
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